Samsung Electronics Co., Ltd.

Samsung Display Devices Co., Ltd.

Young-Man Kim

Jung-Min Lee

Jong-Youb Kim

Joong-Ki Moon

Il-Yong Cho

Jae-Myoung Moon

Jae-Seok Cho

Tae-Hun Kim

Hwan-Jin Kim

Gab-Youl Lee

Tae-Kyung Lee

Hang-ku Ji

Youn-Woong Bang

A display device includes a display panel displaying an image, a driving circuit substrate electrically connected to the display panel and having a contact member mounted on one side thereof, a frame accommodating the display panel and the driving circuit substrate and having a through hole, and an accommodating member arranged below the frame and coupled to the frame, wherein the contact member contacts the accommodating member through the through hole.

Display device

Disclosed herein is a system and method for controlling the degree of superheat of an air conditioner. The air conditioner includes a compressor controlled in a pulse width modulation manner according to duty control signals, a condenser, an electronic expansion valve and an evaporator so as to form a refrigeration cycle. An entrance temperature sensor situated at the entrance of the evaporator and an exit temperature sensor situated at the exit of the evaporator are connected to a control unit. The control unit calculates the degree of superheat of the evaporator using the difference between mean entrance and exit temperatures of the evaporator sensed by the entrance temperature sensor and the exit temperature sensor for a period of time corresponding to a duty cycle period of the compressor, and regulates the opening of the electronic expansion valve according to the calculated degree of superheat.

Control system of degree of superheat of air conditioner and control method thereof

An outdoor unit includes a pulse width modulation compressor, an outdoor heat exchanger. First and second outdoor fans are positioned near to the outdoor heat exchanger. The operation modes of the first and second outdoor fans are determined in accordance with the amount of refrigerant discharged from the compressor and external conditions. An outdoor temperature sensor is electrically connected to the input port of the outdoor control unit, and first and second outdoor fan operating units for respectively operating first and second outdoor fans are connected to the output port of the outdoor control unit. The outdoor control unit operates the first and second fans in a preset operation mode by confirming outdoor temperature data input from the outdoor temperature sensor and the loading time of the compressor and controlling the first and second outdoor fan operating units.

Outdoor fan control system of air conditioner and control method thereof

A system for controlling the starting of an air conditioner includes a compressor controlled in a pulse width modulation according to a duty cycle control signal, an electronic expansion valve for expanding refrigerant compressed in the compressor, a high pressure conduit connecting the exit side of the compressor and the inlet side of the electronic expansion valve, a low pressure conduit connecting the exit side of the electronic expansion valve and the inlet side of the compressor, a bypass conduit connected at its first end to the high pressure conduit and at its second end to the low pressure conduit, and a flow rate regulating valve mounted on the bypass conduit for regulating a flow rate of fluid flowing through the bypass conduit. A control unit controls the compressor during the starting of the compressor in such a way that the electronic expansion valve is open, the flow rate regulating valve is open and a duty control signal shorter than a duty control signal during a normal operation is generated.

System for controlling starting of air conditioner and control method thereof

An air conditioner control system comprises an outdoor unit having a compressor controlled by pulse-width modulation, and a plurality of indoor units. Each of the plurality indoor units has an indoor control unit to calculate a respective required individual cooling capacity, and an indoor communication circuit unit through which the required individual cooling capacity calculated is transmitted. The outdoor unit has an outdoor control unit producing a duty cycle control signal in response to the required individual cooling capacity transmitted from the indoor units to control the capacity of the compressor, and an outdoor communication circuit unit to communicate the indoor communication circuit unit of respective ones of the plurality of indoor units. Each of the plurality of indoor units calculates the required individual cooling capacity based on at least one of an available cooling capacity of the respective one of the plurality of indoor units itself and the difference between a detected indoor air temperature and a preset temperature.

Air conditioner control system and control method thereof

A system includes a compressor and an expansion valve. The exit side of the compressor and the inlet side of the expansion valve are connected by a high pressure conduit, and the exit side of the expansion valve and the inlet side of the compressor are connected by a low pressure conduit. A bypass conduit is connected to the high pressure conduit and the low pressure conduit and a flow rate regulating valve is mounted on the bypass conduit. A control unit controls the expansion valve and the flow rate regulating valve to perform two starting operations in such a way that the flow rate regulating valve is open and the expansion valve is closed in a first starting operation, and the flow rate regulating valve is closed and the electronic expansion valve is open to a predetermined extent in a second starting operation. The compressor is controlled by a duty control signal having a period shorter than a period during a normal operation for starting operations.

Control system for starting of air conditioner and control method thereof

A discharge current control apparatus of an air conditioner and method thereof having a plurality of suction inlets for sucking an indoor air, a heat exchanger for heat-exchanging the indoor air sucked through the suction inlets, a discharge outlet for discharging the air heat-exchanged by the heat exchanger, a plurality of wind direction blades for controlling a wind direction of the air discharged through the discharge outlet, and an indoor fan for controlling a wind amount of the air discharged through the discharge outlet, the apparatus comprising a distance detecting unit for sensing a human body nearness distance by detecting infrared generated from a human body, a position detecting unit for sensing a human body left and right position by detecting infrared generated from a human body, a control unit for controlling a wind direction, a wind amount, and a predetermined temperature of the discharged air, so that the discharged air can be supplied to an area where the human body exits according to the human body nearness distance sensed by the distance detecting unit and the human body left and right position sensed by the position detecting unit, a wind direction control unit for controlling a wind direction of the discharged air according to the control of the control unit, and a wind amount control unit for controlling a wind amount of the discharged air according to the control of the control unit.

Discharge current control apparatus of air conditioner and method thereof

A room air conditioner includes an air inlet, an air outlet, a heat exchanger disposed between the inlet and outlet, and an air circulation fan. The inlet is opened and closed by motor-driven inlet vanes. The outlet is opened and closed by a vertically slidable motor-driven door. Air direction control vanes extend across the outlet for varying the direction of discharged air. Before the door is either opened or closed, the air control vanes are automatically swung upwardly to a clearance position to avoid interfering with movement of the door. When the inlet and outlet are to be closed, the inlet vane motor is actuated prior the door motor to ensure that the inlet and outlet are fully closed simultaneously, even though it takes longer for the inlet vanes to travel to their fully closed state. A sensor determines when the door reaches an almost-closed state, and the door motor continues to operate for a set period thereafter to ensure that the door becomes fully closed.

Room air conditioner having inlet and outlet closures and methods for

Disclosed is an electrostatic charging apparatus for electrostatically charging the inside surface of the screen panel of a color cathode ray tube to make powdery phosphor to be applied to the inside surface by the electrical attraction, which comprises a corona charger for electrostatically charging the inside surface, a stand frame for supporting the corona charger, a mounting means for supporting the screen panel with the part of the inside surface of the display being wholly exposed to the corona charger with a space therebetween, and a power supply for supplying a high voltage to the corona charger, wherein the corona charger has a convex surface with a plurality of charging electrodes uniformly distributed.

Growing community of inventors

Seoul, South Korea

Young-Man Kim